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marta [7]
3 years ago
7

Quick help please!

Mathematics
1 answer:
pashok25 [27]3 years ago
4 0
Congruent triangles are all the same. Given that the faces of a triangular pyramid are congruent then all its faces are the same. It is also good to note that this pyramid has 4 faces. Given that the surface area of the pyramid is 372m^2, the area of one face will be:
area=(total area)/(number of faces)
=372/4
=93 m^2

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The length of a rectangle has a measure of x and the width of a rectangle has a measure of (x-2). Find x if the area is 35.
Oliga [24]

Answer:

length = 7

pls mark me the brainliest

Step-by-step explanation:

A = Lw

35 = x (x -2)

35 = x2 - 2x

x2 -2x -35 = 0

(x-7)(x+5) = 0  

x-7=0

x=7       (we won't use the other factor since it would give us a negative length

so length = 7

4 0
3 years ago
Frank is going to plant c vegetable seeds in one garden and 2c +8 vegetable seeds in another.
Elden [556K]

Answer:

3c+8

Step-by-step explanation:

Add the numbers of seeds together

c + 2c+8

Combine like terms

3c+8

8 0
3 years ago
A research paper reports, "… in a sample with 350 observations, the sample average Y = 0.9 is statistically significantly differ
vladimir2022 [97]

Answer:

I would reject the null hypothesis.

Step-by-step explanation:

The test is a two-tailed test because it is stated that the alternate hypothesis is two-sided.

Degree of freedom = n - 1 = 350 - 1 = 349

At 349 degrees of freedom and 5% significance level, the critical values are -1.96702 and 1.96702

Conclusion:

Reject the null hypothesis because the test statistic 3 falls outside the region bounded by the critical values -1.96702 and 1.96702.

8 0
3 years ago
Please *100 I really need help. Correct answer will get the brainliest answer. y = -­4x^2 ­- 2
bearhunter [10]
Slope: 0
Y-intercept: -4
8 0
3 years ago
A bicycle tire has a diameter of 62 cm<br> #Khan Academy problem
iragen [17]

Answer:

the circumstance would be 194.68

Step-by-step explanation:

62*3.14

194.68‬

7 0
3 years ago
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